package com.twelvet.server.job.util;

import com.twelvet.api.job.domain.SysJob;
import com.twelvet.api.job.domain.SysJobLog;
import com.twelvet.framework.core.constants.ScheduleConstants;
import com.twelvet.framework.utils.SpringContextHolder;
import com.twelvet.framework.utils.StrUtils;
import com.twelvet.framework.utils.bean.BeanUtils;
import com.twelvet.framework.utils.exception.TWTUtilsException;
import com.twelvet.server.job.service.ISysJobLogService;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Date;

/**
 * @author twelvet
 * @WebSite twelvet.cn
 * @Description: 抽象quartz调用
 */
public abstract class AbstractQuartzJob implements Job {

	private static final Logger log = LoggerFactory.getLogger(AbstractQuartzJob.class);

	/**
	 * 线程本地变量
	 */
	private static ThreadLocal<Date> threadLocal = new ThreadLocal<>();

	@Override
	public void execute(JobExecutionContext context) throws JobExecutionException {
		SysJob sysJob = new SysJob();
		BeanUtils.copyBeanProp(sysJob, context.getMergedJobDataMap().get(ScheduleConstants.TASK_PROPERTIES));
		try {
			before(context, sysJob);
			if (sysJob != null) {
				doExecute(context, sysJob);
			}
			after(context, sysJob, null);
		}
		catch (Exception e) {
			log.error("任务执行异常  - ：", e);
			after(context, sysJob, e);
		}
	}

	/**
	 * 执行前
	 * @param context 工作执行上下文对象
	 * @param sysJob 系统计划任务
	 */
	protected void before(JobExecutionContext context, SysJob sysJob) {
		threadLocal.set(new Date());
	}

	/**
	 * 执行后
	 * @param context 工作执行上下文对象
	 * @param sysJob 系统计划任务
	 */
	protected void after(JobExecutionContext context, SysJob sysJob, Exception e) {
		Date startTime = threadLocal.get();
		threadLocal.remove();

		final SysJobLog sysJobLog = new SysJobLog();
		sysJobLog.setJobName(sysJob.getJobName());
		sysJobLog.setJobGroup(sysJob.getJobGroup());
		sysJobLog.setInvokeTarget(sysJob.getInvokeTarget());
		sysJobLog.setStartTime(startTime);
		sysJobLog.setStopTime(new Date());
		long runMs = sysJobLog.getStopTime().getTime() - sysJobLog.getStartTime().getTime();
		sysJobLog.setJobMessage(sysJobLog.getJobName() + " 总共耗时：" + runMs + "毫秒");
		if (e != null) {
			sysJobLog.setStatus("1");
			String errorMsg = StrUtils.substring(TWTUtilsException.getExceptionMessage(e), 0, 2000);
			sysJobLog.setExceptionInfo(errorMsg);
		}
		else {
			sysJobLog.setStatus("0");
		}

		// 写入数据库当中
		SpringContextHolder.getBean(ISysJobLogService.class).addJobLog(sysJobLog);
	}

	/**
	 * 执行方法，由子类重载
	 * @param context 工作执行上下文对象
	 * @param sysJob 系统计划任务
	 * @throws Exception 执行过程中的异常
	 */
	protected abstract void doExecute(JobExecutionContext context, SysJob sysJob) throws Exception;

}
